/Engine/Source/Runtime/GameplayTags/Classes/GameplayTagsManager.h
Gets a Filtered copy of the GameplayRootTags Array based on the comma delimited filter string passed in
void GetFilteredGameplayRootTags ( const [FString](API\Runtime\Core\Containers\FString) & InFilterString, [TArray](API\Runtime\Core\Containers\TArray)< [TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< [FGameplayTagNode](API\Runtime\GameplayTags\FGameplayTagNode) > > & OutTagArray ) const